Conveyor belt furnaces
Conveyor heat treatment furnaces feature adjustable feed speed and controlled heating/cooling zones for continuous hardening and tempering of wire springs. They are used in spring manufacturing, automotive, and tool industries to enhance strength, elasticity, and fatigue resistance.
Continuous spring tempering furnace WNJ420
Continuous spring tempering furnace WNJ315
Continuous spring tempering furnace WNJ630
Continuous spring tempering furnace WNJ530
Continuous spring tempering furnace NS540
Continuous spring tempering furnace WNJ210
Continuous spring tempering furnace WNJ740
Modern conveyor furnaces deliver high-throughput, consistent thermal processing in a protective atmosphere. Uniform temperature distribution and precise conveyor control prevent oxidation, distortion, and overheating—critical for high-performance springs. Models like WNJ210, WNJ315, WNJ530, WNJ630, WNJ740, and KDE NS540 cover applications from micro-springs to heavy-duty automotive components.
Equipped with digital controls, inert/reducing atmospheres, water quenching, and heat-resistant mesh belts rated for 950°C, these systems ensure long service life and minimal maintenance. Chamber sizes up to 4200×700×120 mm and power up to 65 kW support flexible, high-volume production with excellent repeatability.
KNAVI GROUP supplies furnaces directly from manufacturers. All units include full English documentation, up to 2 years of warranty, operator training, and optional on-site commissioning worldwide.